Bobbin receiver for weft replenishing looms



Nov. 19, 1946. BEATRlCE 2,411,354

BOBBIN RECEIVER FOR WEFT REPLENISHING LOOMS Filed Dec. 22, 1945 2 Sheets-Sheet 1 INVENTOR GABREIZBEAHWUE ATTORNEY Nov. 19, 1946- G. c. BEATRICE BOBBIN RECEIVER FOR WEFT REPLENISHING LOOMS Filed Dec. 22, 1945 2 Sheets-Sheet 2 INVE NTQR GABRIEL 0. BEA TR/CE ATTORNEY,

Patented Nov. 19, 1946 BOBBIN RECEIVER FOR WEFT REPLENISHING LOOMS Gabriel 0. Beatrice, Shrewsbury, Mass, assignor to Crompton & Knowles Loom Works, Worcester, Mass., a corporation of Massachusetts Application December 22, 1945, Serial No. 636,949

13 Claims.

This invention relates to Weft replenishing looms and it is the general object of the invention to provide a simple form of receiver for discharged bobbins readily removable from the loom to permit emptying of bobbins from the receiver.

Depleted bobbins are generally discharged downwardly from a weft replenishing loom into a bobbin collector or receiver having a bobbin receiving mouth which projects under the for- Ward part of the path of a guide chute on the reciprocating lay. It is an important object of the invention to mount the receiver on a pivoted carrier by means of a readily detachable connection which permits lifting of the receiver from the carrier only after thelatter has been rocked to a forward position in which the receiver is forward of the path traversed by the chute.

It is another object of the invention to provide the receiver with a dovetail wedge to fit an upwardly opening complementarily formed pocket in the carrier.

With these and other objects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth. V

In the accompanying drawings, wherein a convenient embodiment of my invention is set forth,

Fig. l is a side elevation of the front part of a loom having the invention applied thereto,

Fig. 2 is a front elevation looking in the direction of arrow 2, Fig. 1,

Fig, 3 is an enlarged horizontal section on line 33, Fig. 2,

Fig. 4 is a vertical section on line 4-4, Fig. 3, and

Fig. 5 is an enlarged side elevation of the lower part of the bobbin receiver unit looking in the direction of arrow 5, Fig. 2, showing the parts in normal position, and

Fig. 6 is a digrammatic view similar to Fig. 5 but showing the parts in position for removal of the unit in full lines and indicating the unit removed in dotted lines.

Referring to Figs. 1 and 2, the loom frame I!) The bobbin receiver unit designated generally at R comprises a frame 20 having inner and outer side members 2| and 22 joined by a bottom member 23. The upper ends of the side members are bent rearwardly and downwardly to form arms 24 from which hangs a cloth bobbin receiving bag B having a mouth 25 through which pass bobbins descending from the chute. Upper and lower reinforcing cross bars 26 and 21, respectively, join side members 21' and 22, and cords or the like 28 secured to the bag pass under the cross bars to hold the bag forwardly on frame 20; These cross bars provide hand holds by which the frame and bag may be lifted and inverted in a manner to be described.

The bag and frame may be similar to like parts shown in copending application Serial No. 636,944, filed by Turner on even date herewith, and of themselves are not claimed herein except in combination with certain features of my invention.

The present invention relates more particularly to mounting means for the bobbin receiver, more particularly the lower end of frame 20, and in carrying the invention into effect I provide a support 30 secured at 3| to the loom frame and provided with a pivot stud 32 disposed horizontally and preferably parallel to the lay. Nut 33 draws an enlarged journal 35 on the stud against support 30 to hold the stud in fixed position. The outer end of the stud, or right end as viewed in Fig. 3, is provided with a retaining head 36 and a friction washer 31.

A carrier 40 has a bearing 4| fitting journal 35 between support 30 and washer 31. The carrier is made as shown more particularly in Figs. 3 and 4, and has a body 42 having an outer side Wall 43 in which is formed a downwardly tapering wedge shaped opening or pocket 44 the front and back walls of which are inclined at 45 as seen in Fig. 3 to give the opening a dovetail form.

The frame 20 is provided with a foot so slotted at 5| to receive side member 2! and part of bottom member 23. These parts of the frame 2|] are welded or otherwise secured to the foot, and the latter forms with frame 28 and bag B a bobbin receiver unit removably supported by the car rier. The foot has a dovetail wedge 52 formed complementarily to pocket 44 and fits snugly into the latter when the parts are in normal assembled position shown in Fig. 1. If desired a lug 53 may be provided on'foot 5i! for engagement with a lower part of the carrier and can be filed to insure a snug fit between the foot and the like 51 is secured to the support 30 for engage ment with side member 2| to limit rearward movement of frame 20 and with lug 56 to limit forward 1 and 2, the weight of the receiver being rearward of stud 32 and. holding side member ZI- against stop 51 to locate the bag in normal position with the rear part of its mouth 25 projecting under the front part of the path of the chute. Also, stop 51 extends over foot 50 and prevents the latter and the receiver unit from being lifted from the carrier, thereby preventing interference between the unit and bobbin chute. When the bag is to be emptied of bobbins, the attendant grasps upper crossbar 26 with one hand and pulls frame 20 forwardly, thus moving the carrier and unit to the full line position of Fig. 6. Stop 51 is now rearward of foot 50 topermit upward movement of the receiver unit, and lug 56 is against the stop to prevent further forward movement of the carrier. The attendant now raises the unit as suggested in dotted lines, Fig. 6, and grasps either the lower cross bar 21 on bottom member 23 with the other hand and inverts the unit to empty the bobbins. The foot is then returned to the pocket and the frame pushed back manually to normal position with foot 50 under stop 51.

From the foregoing it will be seen that the bobbin receiver unit is normally prevented from being removed from the carrier, and that removal is possible only after the unit and carrier have been moved forwardly. Furthermore, the dovetail wedge shaped foot fits into a complementarily formed pocket on the carrier and not only supports the receiver unit but also permits ready removal of the unit and return to supporting position after removal. The carrier remains in any position to which it is rocked due to the friction washer 31. The stop pin 51 serves the dual pur pose of holding the unit in normal position and alsolimiting forward movement of the carrier so that pocket 44 will be positioned for reentry of foot 50.

Having thus described my invention it will be seen that changes and modifications may be made therein by those skilled in the art without departingfrom the spirit and scope of the'invention and I do not wish to be limited to the details herein disclosed, but what I claim is:

1. In a weft replenishing loom from which depleted bobbins are discharged, a carrier having an upwardly opening pocket therein and mounted on said loom so that said pocket can move back and forth between front and rear positions, a bobbin receiver unit having a foot normally, in said pocket and removable therefrom by an upwardmovement, said foot causing said pocket to move forwardlywhen said unit is moved forwardly, and stop means so located as to prevent upward movement of said foot when said pocket is in the rear position thereof but permitting upward removal of the foot from said pocket when the latter is in the front position thereof. 2. In a weft replenishing loom from which depleted bobbins are discharged, a carrier pivotally mounted on the 100m for back and forth rocking and having an upwardly opening pocket therein normally in rear position but movable to front position when the carrier rocks forwardly,

4 and a bobbin receiving unit having a foot normally located in said pocket and removable therefrom by an upward motion after the carrier has been rocked to move said pocket from the normal rear position thereof to the front position thereof. 7 3. In a weft replenishing loom from which depleted bobbins are discharged, a carrier having an upwardly opening pocket therein, means mounting said carrier for back and forth motion to move said pocket either to rear or front position, and a bobbin receiver unit having a foot in said pocket and removable therefrom by an upwardmotion when said pocket is in the front position thereof, said carrier and foot holding the receiver in normal position when the pocket is in the rear position thereof.

4. In a weft replenishing loom from which depleted bobbins are discharged, a carrier having an upwardly opening pocket therein, means mounting said carrier for back and forth motion to move said pocket either to rear or front position, a bobbin receiver unit having a, foot in said pocket and removable therefrom by an upward motion when said pocket is in the front position thereof, said carrier and foot holding the receiver in normal position when the pocket is in the rear position thereof, and means preventing upward movement of said foot relatively to said carrier when said pocket is in the rear position thereof.

5. In a weft replenishing loom from which depleted bobbins are discharged, a carrier having a vertically extending pocket therein, means mounting said carrier for back and forth movement to place said pocket in either a front position or a rear position, a bobbin receiver unit having a foot in said pocket removable from the latter by a vertical. movement relatively to the carrier when said pocket is in one of the positions thereof, and means preventing removal of said foot from said pocket when the latter is in-the other position thereof. i

6. In a weft replenishing loom from which depleted bobbins are discharged, a carrier mounted on the loom for movement from a rear position to a front position, a bobbin receiver unit for said discharged bobbins, and cooperating means formed on said carrier and unit providing a connection moving with said carrier and discon nectible to permit upward motion of the receiver unit when the carrier is in front position only, said connection supporting the receiver unit in normal position when the carrier is in the rear position thereof. 7

7. In a weft replenishing loom from which depleted bobbins are discharged, a carrier mounted on the loom for movement from a rear position to a front position, a bobbin receiver unit for said discharged bobbins, cooperating means formed on said-carrier and unit providing a' wedge shaped foot on the unit and a pocket in the carrier formed to receive the foot by downward motion of the latter, and stop means to prevent upward motion of the foot when the carrier is in rear position, said foot being movable upwardly out of said pocket when the carrier is in front position. i

8. In a weft replenishing loom from which depleted bobbins are discharged, a carrier mounted on the m for movement from a rear position to a front position, a bobbing receiver unit for said discharged bobbins, and cooperating means formed on said carrier and unit providing a dovetail connection disconnectible by upward motion of the unit when the carrier is in; front position only, said connection supporting the unit in normal position when the carrier is in rear position.

9. In a weft replenishing loom from which depleted bobbins are discharged, a bobbin receiver unit, a downwardly tapering dovetail foot on said unit, a pivoted carrier for the unit having a pocket moving to front and rear position as the carrier pivots and formed oomplementarily to the foot to receive the latter by downward motion thereof relatively to the carrier, and means preventing said foot from being movable upwardly out of said pocket when the latter is in rear position but permitting removal of the unit from said carrier when the pocket is in front position.

10. In a weft replenishing loom from which dep1eted,bobbins are discharged down a bobbin chute which reciprocates backwardly and forwardly along a given path, a support on the loom, a carrier pivoted on said support and having an upwardly opening pocket therein moving to front and rear positions as said carrier pivots on said support, a bobbin receiver unit detachably supported on said carrier and having a bobbin receiving mouth normally extending under said path when said pocket is in the rear position thereof but located forwardly of said path when said pocket is in the forward position thereof, said receiver unit having a part slidable into and out of said pocket in a direction having a vertical component, and stop means preventing said part from moving upwardly out of said pocket when the latter is in the rear position thereof but so located that said part can move upwardly out of said pocket when the latter is in the front position thereof.

11. In a weft replenishing loom from which depleted bobbins are discharged, a carrier having a pocket therein and pivoted on the loom to move said pocket to a given position and to a different position, friction means holding said carrier in either said given position or said different position, and a bobbin receiver unit having a part normally located in said pocket when the latter is in said different position and movable to pivot said carrier to locate said pocket in said given position, said unit being thereafter removable from said carrier and said friction means tending to hold said carrier with said pocket in said given position to facilitate entry of said part into said pocket.

12. In a weft replenishing 100m from which depleted bobbins are discharged, a support fixed with respect to the loom, a carrier having an upwardly opening pocket therein and pivoted on said support to move said pocket either to normal or abnormal position, stop means on said carrier, a bobbin receiver unit having a foot thereon normally in said pocket and removable upwardly therefrom, and a stop on said support engaging said unit to position the latter normally when the pocket is in normal position and engage said stop means to determine the abnormal position of said pocket.

13. In a weft replenishing loom from which depleted bobbins are discharged, a support fixed with respect to the loom, a carrier having an upwardly opening pocket therein and pivoted on said support to move said pocket either to normal or abnormal position, stop means on said carrier, at bobbin receiver unit having a foot thereon normally in said pocket and removable upwardly therefrom, and a stop on said support engaging said unit to position the latter normally when the pocket is in normal position and engage said stop means to determine the abnormal position of said pocket, said stop overhanging said foot when the pocket is in the normal position thereof to prevent removal of said foot from said pocket when the latter is in the normal position thereof.

GABRIEL C. BEATRICE. 

